Nut-lock.



L. E. GAMPBELL.

NUT LOOK. APPLICATION 11.21) in. 11, 1908.

905,842. Patented Dec. 8, 1908.

I I n I UNITED sTATEs PATENT OFFICE.

LUTE EUSEGER CAMPBELL, OF J OPLIN MISSOURI, ASSIGNOR OF ONE-THIRD TO ALEXANDER F. DAVIS AND ONE-THIRD TO CLAUDE THORNTON, OF JOPLIN, MISSOURI.

N UT-LOCK.

Specification of Letters Patent.

Application filed March 11, 1908.

To all whom it may concern:

Be it known that I, LUTE EUSEGER CAMP- BELL, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented a new and useful Nut-Lock, of which the following is a specification.

The invention relates to improvements in nut looks.

The object of the present invention is to improve the construction of nut locks, and to provide a simple, inexpensive and eflicient one designed particularly for use on rail joints, and adapted to be readily applied to a nut and capable of effectually preventing the same from accidentally unscrewing.

A further obj cot of the invention is.to provide a nut lock of this character, which may be readily disengaged from a nut, when it is desired to remove the same from its bolt.

With these and other objects in View, the

- invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claim hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claim, may be resorted to without departin from the spirit or sacrificing any of the a vantages of the invention.

In the drawing :Figure 1 is a perspective view of a ortion of a rail joint provided with a nut loc constructed in accordance with this invention. Fig. 2 is a transverse sectional view. Fig. 3 is a sectional view taken substantially on the line 33 of Fig. 2. Fig. 4 is a detail perspective view of the nut jpck showing the same before the jaws are ent.

Like numerals of reference designate corresponding parts in all the figures of the drawing.

1 designates a nut lock, which is stamped or otherwise formed from sheet metal, and the said nut lock consists of a lower engaging body portion 2, side jaws 3 and an intermediate jaw 4. The intermediate and side jaws are formed by cutting or splitting the metal at opposite sides of the median line of the nut lock, the cuts or splits extending from the top of the nut lock and terminating short of the bottom of the same. The intermediate partially severed ortion, which constitutes the jaw 4, is bent ackward upon the body portion 2 to provide a bolt receiving opening or recess 5. I

The side jaws 3 are arranged at opposite sides of a bolt 6, as clearly illustrated in Fig. 3 of the drawing, and the lower edge 7 of the body portion 2 of the nut lock engages the bottom flange or portion 8 of a fish plate 9, or other suitable stop.

The nut lock is applied to a bolt before the nut is screwed on the same, and after the nut is screwed home, the upper ends of the side jaws are bent downwardly upon the upper edge of the nut, and the intermediate jaw is bent around the lower edge of the nut, the terminal of the lower jaw being located at the front face of the nut and at the adjacent end of the bolt, as shown. The nut lock, by engaging the bottom flange or portion of the fish plate and the up er and lower edges of the nut, securely grip t e latter, and effectually prevent the same from accidentally rotating. The jaws are adapted to be readily bent out of'engagement with the nut, when it is desired to unscrew the same. The nut lock besides being adapted for use on rail joints, may be advantageously employed on various machines and structures subject to vibration.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

The combination with a bolt and a nut, of a nut lock constructed of sheet metal and consisting of a body portion arranged at the inner face of the nut below the bolt and extended beyond the nut and having a straight lower edge for engaging the bottom flange or portion of a fish plate or other stop, and intermediate and side jaws connected with the top of the body portion, the intermediate jaw being bent downwardly upon the outer face of the body portion to provide a bolt receiving space or recess between the side jaws and then horizontally to engage the lower edge of the nut and having its terminal portion extended vertically and enmy own, I have hereto afiixed my signature gaging the outer 6:1ldd0f the bolllt, and the side in the presence of two Witnesses. jaws being eXten e vertica y at opposite sides of the bolt and having their upper ter- LUTE EUSEGER CAMPBELL 5 minals bent outward and engaging the upper Witnesses:

edge of the nut. ED. F. HANsFORD,

In testimony, that I claim the foregoing as J. J. MITTS. 

